Cycreon floricola floricola, Arriaga-Varela, Emmanuel, Wong, Sin Yeng, Kirejtshuk, Alexander & Fikacek, Martin, 2018

Arriaga-Varela, Emmanuel, Wong, Sin Yeng, Kirejtshuk, Alexander & Fikacek, Martin, 2018, Review of the flower-inhabiting water scavenger beetle genus Cycreon (Coleoptera, Hydrophilidae), with descriptions of new species and comments on its biology, Deutsche Entomologische Zeitschrift 65 (1), pp. 99-115 : 105-107

Cycreon floricola floricola ssp. n. Figs 1 A–B,E–O, 2, 3 A–D, 4 G–I, K, 5 G–I

Type locality.

Malaysia, Kelantan, Guala Musang prov., Kuala Koh district, Taman Negara, 700 m from the entrance, 96 m a.s.l., 4°52.333ʹN 102°26.872ʹE.

Type material.

Holotype (male: ZIN): "MALAYSIA: Kelantan AR-4332 / Guala Musang prov., Kuala Koh / distr., Taman Negara, 700 m / from entrance, 4°52.333ʹN / 102°26.872ʹE, 96m, 11.i.2014 / Schismatoglottis sp. HY Chen". Paratypes: MALAYSIA: Johor: Endau-Rompin N.P., NERC to Visitor Complex, Stream 1, 80 m, 2°25ʹ12.8 ʹ ʺN 103°15ʹ41.33ʺ E, flowering Kiewia ridleyi , 22.x.2008, Ooi Im Hin lgt. (AR-2602) (1: ZIN); Kota Tinggi, Hutan Simpan Panti, starting point of the trail to mount Panti, 14 m, 1°48.595ʹN 103°51.099ʹE, flowering Schismatoglottis , 4.xii.2013, Hoe Yin Chen lgt. (AR-4322) (21: ZIN, NMPC, IBTP); [same locality, except] 16 m, flowering Schismatoglottis , 4.xii.2013, Hoe Yin Chen lgt. (AR-4326) (11: ZIN); Kota Tinggi, Hutan Simpan Panti, starting point of the trail to mount Panti, 16 m, 01°48.565'N 103°51.104'E, flowering Schismatoglottis , 04.xii.2013, Hoe Yin Chen lgt. (AR-4328) (4: ZIN, NMPC); Kota Tinggi, Hutan Simpan Panti, Starting point of the trail to mount Panti, 16 m, 01°48.565'N 103°51.104'E, flowering Schismatoglottis , 13.xii.2013, Hoe Yin Chen lgt. (AR-4328) (6: ZIN, NMPC); Kelantan: Gua Musang, Kuala Koh, Taman Negara, 700 m away from the entrance gate (outside the park), 96 m, 4°52.333ʹN 102°26.872ʹE, flowering Schismatoglottis , 11.x.2014, Hoe Yin Chen lgt. (AR-4332) (237: ZIN, NMPC, IBTP, KMNH, EIHE, NHMW, BMNH, SRBC).

Diagnosis.

This subspecies is very similar to Cycreon floricola borneanus ssp. n. with which it shares most of the external characters including genital morphology. Cycreon floricola floricola can be distinguished by the pronotal punctation consisting exclusively of the incomplete ring-like punctures. The dorsal coloration of the is slightly more contrasting in most specimens of C. floricola floricola than in representatives of C. f. borneanus ssp. n., with the pronotum darker compared to the elytra.

Description.

Measurements. 2.4-3.2 mm long (length of holotype: 2.7 mm), 1.9 –2.0× as long as wide, widest at basal fifth of elytra; weakly convex, 3.2 –3.4× as long as high (height of holotype: 2.7 mm). Colouration. Pale yellowish-brown with dark-brown elytra (Fig. 1 A–B).

Pronotum 2.2 × wider than long; 1.6 × wider at base than between anterior angles, with punctation dense and shallow, consisting of semicircular impressions (punctures) with a small setiferous puncture on posterior margin. Punctation approximately same in size and density all over pronotum.

Elytra widest at anterior fifth, 1.1 –1.2× as long as wide, 2.9 –3.0× as long as pronotum, 1.1 × as wide as pronotum. Punctation on intervals composed of semicircular impressions with one setiferous puncture on posterior margin.

Distribution.

The subspecies is known from two regions in Peninsular Malaysia, in provinces of Johor and Kelantan.

Biology.

Many specimens of C. floricola floricola were collected inside of inflorescences of Schismatoglottis species and Kiewia ridleyi ( Low et al. 2018) (both Araceae ).